Attenuation pond · Drainage

Attenuation pond at km 163.0

Demo

A23-PD-0005 · A23 Beira Interior, Portugal · Southbound

Low criticalityExpired

Condition: 2Good; Index 79 of 100. Loses 1 a year.
Remaining life: 28 years; Installed 2004, 50-year life
Replacement value: €221k; 4,910 m³
Next inspection: 14 Sep 2027; In 318 daysLast inspected 14 Sep 2026

Inventory and condition

What it is and how it is wearing

Type: Attenuation pond (Drainage)
Construction: Vegetated retention pond
Quantity: 4,910 m³
Location: A23 Beira Interior, Southbound
Coordinates: 40.45063, -7.35009
Installed: 2004
End of design life: 2054

Component condition

InletGood
Outlet controlVery good
EmbankmentVery good

Condition history

Inspected condition indexForecast to handback, 2032Bands show grades 1 (top) to 5.

Show as a table

Condition index at each inspection
Date	Index	Grade	Inspector
16 Sep 2018	86	Very good	Pedro Almeida
16 Sep 2019	85	Very good	Sofia Pinto
15 Sep 2020	87	Very good	Pedro Almeida
15 Sep 2021	86	Very good	Sofia Pinto
15 Sep 2022	85	Very good	Pedro Almeida
15 Sep 2023	80	Very good	Sofia Pinto
14 Sep 2024	83	Very good	Pedro Almeida
14 Sep 2025	80	Very good	Sofia Pinto
14 Sep 2026	79	Good	Pedro Almeida

People and organisations

Who is responsible for it

7 linked

OwnerContractorConsultantInsurerGrantor

Asset ownerJoão Martins, A23 Beira Interior concession companyAccountable for condition, renewal and handbackjoao.martins@a23-beira-interior-concession-company.example
Asset managerMiguel Costa, A23 Beira Interior concession companyKeeps the record, plans inspections and worksmiguel.costa@a23-beira-interior-concession-company.example
Maintenance contractorCatarina Gomes, Beira Conservação ViáriaRoutine and reactive maintenance, defect repairscatarina.gomes@beira-conservacao-viaria.example
Inspection consultantPedro Almeida, Estrela Inspeções TécnicasPrincipal and general inspectionspedro.almeida@estrela-inspecoes-tecnicas.example
Original contractorSerra ConstruçõesWorkmanship warranty and defects liability
InsurerMeridian Infrastructure InsuranceProperty damage and third-party liability cover
GrantorPortuguese granting authorityReceives the asset at handback in 2032

History

Inspections, works, defects and notes

Inspection: Drainage survey14 Sep 2026
Grade 2, index 79. Free-flowing; gullies clear.
Pedro Almeida, Estrela Inspeções Técnicas
Note: Note5 Aug 2026
Added to the next renewal programme for scoping.
Miguel Costa
Note: Note23 May 2026
Spares held at the maintenance depot.
Miguel Costa
Defect: Outfall scour6 Jan 2026Repaired
Category 2. Repaired within the contract response time.
Catarina Gomes, Beira Conservação Viária
Inspection: Routine inspection14 Sep 2025
Grade 1, index 80. Free-flowing; gullies clear.
Sofia Pinto, Estrela Inspeções Técnicas
Inspection: Drainage survey14 Sep 2024
Grade 1, index 83. Free-flowing; gullies clear.
Pedro Almeida, Estrela Inspeções Técnicas
Inspection: Routine inspection15 Sep 2023
Grade 1, index 80. Free-flowing; gullies clear.
Sofia Pinto, Estrela Inspeções Técnicas
Inspection: Drainage survey15 Sep 2022
Grade 1, index 85. Free-flowing; gullies clear.
Pedro Almeida, Estrela Inspeções Técnicas

Liability and warranty

Who pays if something goes wrong

2004200820122016202020242028

Workmanship warrantyExpiredSerra Construções1 Apr 2004 to 1 Apr 2007, ended 238 months ago. Materials and workmanship of the works.
Defects liability periodExpiredSerra Construções1 Apr 2004 to 1 Apr 2006, ended 251 months ago. Defects notified by the concession company after handover.

Today

Liability by area

Who carries each liability
Liability	Responsible	Terms
Routine maintenance	Beira Conservação Viária	Operations and maintenance contract, performance-based
Defects	A23 Beira Interior concession company	All warranties expired; the concession company carries the risk
Renewal	A23 Beira Interior concession company	End of design life around 2054
Third-party damage	Meridian Infrastructure Insurance	Costs recovered from the at-fault party where known; €5,000 excess
Handback condition	A23 Beira Interior concession company	Grade 3 or better at handback in 2032

Handback

Handback to the grantor in 2032Portuguese granting authority

3RequiredFair or better2ForecastGood

Forecast to meet the handback standard at the current rate of wear.

Claims

No claims recorded against this asset.

Nearest assets on A23 Beira Interior

2Culvert at km 162.5A23-CV-0011 · 0.5 km away
3Pavement section at km 164.2A23-PV-0027 · 1.2 km away
4Emergency phone at km 161.7A23-SO-0017 · 1.3 km away
3Crash cushion at km 164.3A23-CC-0008 · 1.3 km away
1Road markings at km 165.4A23-RM-0017 · 2.4 km away

All 224 assets on A23 Beira Interior

Illustrative record generated for the demo. Names, organisations, contacts, dates and amounts are fictional.

Loading asset record…

Date

Index

Grade

Inspector

16 Sep 2018

Very good

Pedro Almeida

16 Sep 2019

Very good

Sofia Pinto

15 Sep 2020

Very good

Pedro Almeida

15 Sep 2021

Very good

Sofia Pinto

15 Sep 2022

Very good

Pedro Almeida

15 Sep 2023

Very good

Sofia Pinto

14 Sep 2024

Very good

Pedro Almeida

14 Sep 2025

Very good

Sofia Pinto

14 Sep 2026

Good

Pedro Almeida

Liability

Responsible

Terms

Routine maintenance

Beira Conservação Viária

Operations and maintenance contract, performance-based

Defects

A23 Beira Interior concession company

All warranties expired; the concession company carries the risk

Renewal

A23 Beira Interior concession company

End of design life around 2054

Third-party damage

Meridian Infrastructure Insurance

Costs recovered from the at-fault party where known; €5,000 excess

Handback condition

A23 Beira Interior concession company

Grade 3 or better at handback in 2032

Attenuation pond at km 163.0

What it is and how it is wearing

Component condition

Condition history

Who is responsible for it

Inspections, works, defects and notes

Who pays if something goes wrong

Liability by area

Handback

Claims

Nearest assets on A23 Beira Interior

Ask your asset

Ask your asset

Attenuation pond at km 163.0

What it is and how it is wearing

Component condition

Condition history

Who is responsible for it

Inspections, works, defects and notes

Who pays if something goes wrong

Liability by area

Handback

Claims

Nearest assets on A23 Beira Interior

Ask your asset

Ask your asset